ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesR49.22

R49.22

Hyponasality

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/11/2025

Code Description

ICD-10 R49.22 is a billable code used to indicate a diagnosis of hyponasality.

Key Diagnostic Point:

Hyponasality is a clinical condition characterized by a reduced nasal resonance during speech, resulting in a voice quality that sounds 'stuffy' or 'blocked.' This condition occurs when there is insufficient airflow through the nasal passages during phonation, often leading to the perception that the patient is speaking through their mouth rather than their nose. Common symptoms associated with hyponasality include a nasal-sounding voice, difficulty in nasal breathing, and potential complaints of a sensation of nasal obstruction. The condition can arise from various etiologies, including nasal congestion due to allergies, infections, or anatomical abnormalities such as a deviated septum. In some cases, hyponasality may also be a result of neurological conditions affecting the muscles involved in speech production. Accurate diagnosis typically involves a thorough clinical examination, patient history, and possibly imaging studies to assess the nasal passages and surrounding structures.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying causes (e.g., anatomical, infectious, allergic)
  • Potential overlap with other nasal conditions (e.g., nasal obstruction)
  • Need for comprehensive documentation to support the diagnosis
  • Variability in clinical presentation among patients

Audit Risk Factors

  • Inadequate documentation of the clinical findings leading to the diagnosis
  • Failure to specify the underlying cause of hyponasality
  • Misuse of the code in cases of nasal obstruction without hyponasality
  • Lack of supporting evidence from diagnostic tests or imaging

Specialty Focus

Medical Specialties

Internal Medicine

Documentation Requirements

Detailed patient history, physical examination findings, and any relevant diagnostic tests.

Common Clinical Scenarios

Patients presenting with chronic sinusitis or allergic rhinitis exhibiting hyponasal speech.

Billing Considerations

Consideration of comorbid conditions that may contribute to nasal symptoms.

Emergency Medicine

Documentation Requirements

Acute assessment of nasal patency and any immediate interventions performed.

Common Clinical Scenarios

Acute allergic reactions or upper respiratory infections leading to sudden onset of hyponasality.

Billing Considerations

Rapid evaluation of airway status and potential need for urgent interventions.

Coding Guidelines

Inclusion Criteria

Use R49.22 When
  • Follow the official ICD
  • CM coding guidelines, ensuring that the diagnosis is supported by clinical findings and that the code is used appropriately based on the patient's symptoms and underlying conditions

Exclusion Criteria

Do NOT use R49.22 When
No specific exclusions found.

Related CPT Codes

92507CPT Code

Treatment of speech sound production deficits

Clinical Scenario

Used in conjunction with hyponasality diagnosis for speech therapy.

Documentation Requirements

Document the specific speech deficits and treatment goals.

Specialty Considerations

Speech-language pathologists should provide detailed reports on progress.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of conditions like hyponasality, improving the granularity of data for clinical and billing purposes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like hyponasality, improving the granularity of data for clinical and billing purposes.

Reimbursement & Billing Impact

billing purposes.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What are the common causes of hyponasality?

Common causes include nasal congestion from allergies, infections, anatomical abnormalities like a deviated septum, and neurological conditions affecting speech.

How is hyponasality diagnosed?

Diagnosis typically involves a clinical examination, patient history, and may include imaging studies to assess nasal passages.